How does this image illustrate a contribution of the byzantine empire?

Byzantine art is the artistic products of the Eastern Roman, or Byzantine, Empire, as well as the nations and states that inherited culturally from the empire. Though the empire itself emerged from Rome's decline and lasted until the Fall of Constantinople in 1453, many Eastern Orthodox states in Eastern Europe, as well as to some degree the Muslim states of the eastern Mediterranean, preserved many aspects of the empire's culture and art for centuries afterward.